Window regulator



1931. s. w. NICHOLSON WINDOW REGULATOR Filed March .23, 1926 2 Sheets-Sheet l lllllllllllllll I X I 4 O a INVEN TOR.

A TTORNEYUZ Aug. 11, 1931. s. w. NICHOLSON 1,818,

wmnow REGULATOR Filed March 23'', 1926 2 shuts-sna 2 INVEN TOR.

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Patent ed Aug. 11, 1931 UNITED STATES PATENTT-OTFFIICEQ STANLEY w. NICHOLSON, or romino, x10, Assreuon, BYMESNE ASSIGNMENTSYTO I THE DURAhCOMPANY, or TOLEDO, omo a oonrona'rxon or onro WINDOW REGULATOR j Application filed March 23, 1926. Serial No. 96,819.

5, j ects of the invention are to provide a simple construction of window regulator which may 1 be cheaply manufactured; to provide. a window regulator having a pivotal lifter arm arranged to exert a force upon the window 10. substantially centrally thereof in all positions of. angular adjustment of the arm; and to provide a simplearrangement of counter balance for the weight of the window.

= With these as well as other objects in view, the invention resides in the novel features of construction and combinations and arrangements of parts as more fully hereinafter set forth. v T In thedrawings: Figure 1 is an interior side elevation of a portion of abus employing window regulators embodying my invention; Figure 2 is an enlarged'interior side elevation of a portion therewith with the internal panel removed;

Figure 3 isa cross section on the line 33 I of Figure 2 -Figure 4 1s a View similar to Figure 2 and showing a modified window regulator;

{Figure 5 is a cross section on the line 5-5 of Figure 4. j I

In the present instance, I have shown abus having windows which are raised and low-. ered'by'window regulators embodying my This bus has the adjacent wininvention.

dow openings 1 with the jambs 2 therebetween provided with guideways 3- for the windows 4. These windows are vertically movable from positions closing the openings into the chambers 5 which are located below the sills 6'at the bottoms of thezopenings and between the jambs 2 and the inner and outer panels 7 and 8, respectively.

For raising and lowering the windows -which are relatively wideand heavy, I have provided a window regulator for each win-- dow. Since the arrangementof each window regulator is the same, but one window regulator will be described in detail. 2' This to window regulator has the pivotal lifterarm 9 which is slidably connected-to the window as by means of the bearing 10 secured to the outer end of the arm and slidably engaging in the channel 11 which embraces and is Se-- cured to the lower edge of the window. The windowregulator also has the rack 12 which is pivotally connected to thearm 9 and which meshes with the pinion 13, this latter being:

driven from the crank 14 throughsuitable irreversible drive mechanism 15 which permits driving the pinion from the crank but prevents driving the crank from the pinion.

.Itis very important that the force exerted by the lifter arm in raising the window be applied substantially centrally of the win,-

dow in all positions of angular adjustment of the arm and for this reason the arm is.

made relatively long and its pivotal end por-- tion is located in the chamber 5 for receiving the adjacent window. The armis connected by the pivot 16 to the free apex of the triangular mounting plate 17 which issecured to a jamb and is located laterally inward from the path' of'travel of the window movable into the chamber, in which the mounting plate extends so" that the mounting plate v and lifter arm will not interfere with the.

travel of thiswindow. The mounting plate, is preferably provided with the transverse in? wardly extending flanges 18 at its edges for reinforcing the mounting plate.

'YThe rack 12 is longitudinally slidablewith in the channel 19 formed in the inner side of the jamb and the pinion crank and associated irreversible drive mechanism are pref erably formed as a unitary structure and secure to the jamb above the sill 6 so that the crank will not interfere with the arrange ment of the seats ofthe'bus.

For counterbalancing the weight of each window, Ihaveprovid-edthe coil spring 20 which is also located in the channel 19 of the jamb and is hooked at itslower end tothe upper end of the rack and at its upper end' to theupper'end portion of the j amb.

' From the above description, it will be readily; seen that the construction of my window 'regulatoiiisvery simple and furthermore is such that it may be formed largely of stampings. It will also be seenthat by reason of the lifter arm of each window regulator overlapping the adjacent window opening, a substantially centrally located vertical lift may be provided for each window inasmuch as comparatively long lifter arms may then be used. Furthermore, it will be seen that the window regulator lends itself readily for installation in a bus or other vehicle and per mits locating the crank so that it will not interferewith the arrangement of the seats.

The modified construction of window regulator shown in Figures 4 and 5 comprises the pivotal lifter arm 21 which has its outer end operatively connected to the lower edge of the window 22 and its inner end pivotally connectedtothe rack 23, thelifter arm being pivotally mounted intermediate its ends upon the triangular-mounting plate 24 and preferably at, an apexthereof. The rack 23 extends upwardly within thechannel 25 formed in the inner sideof the jamb and is reciprocated in the same manner as the rack 12 from the crank 26 secured to the jamb above the window sill 27. For counterbalancing the weight of the window, I have provided the convolute or spiral' springs 28 upon opposite sides of the mounting plate, each having its outer endhookedand engaging the transverse pin 29 upon the arm and its inner end en- I gaging in slots inthe ends of the pin 30 forming the'pivot for the arm and rigidly secured to the mounting plate. By reason of the two counterbalancing springs, smaller springs may be used than if one counterbalancing spring were employed and furthermore, the effect exerted by these springs is balanced on the opposite sides of the arm.

What Iclaim as my invention is 1. In a vehicle having adjacent window openings and chambers for the openings and also Windows for the openings movable into the chambers, a window regulator for actuatingone of the windows including a pivotal lifter arm having a portion extending within a chamber and operatively connected to thewindow and a second portion extending within an adjacent chamber, a pivotalmounting for said: second portion within said lastmentioned chamber, andmeans for operating said lifter arm.

2. In a. vehicle having adjacent window openings and chambers below the openings and also windows forthe openings movable into the chambers, a window regulator for actuating one of the windows including a pivotal lifter arm having its free end portion extendingwithin a chamber and operatively connected to the window and its pivotal end portion extending within an adjacent chamer, a mounting plate within said adjacent chamber and pivotally connected to the piv otal. end portion of said arm, said mounting plate and arm being out of thepath of travel of the window movable into said adjacent chamber, and means for operating said lifter arm.

3. In a vehicle having adjacent window openings and chambers below the openings, windows for the openings movable into the chambers and jambs between the openings and chambers, a window regulator for actuating one of the windows having a pivotal lifter arm extending into adjacent chambers and operatively connected at one end to the window, a mounting plate upon the j amb between said chambers pivotally connected to the other end of said arm, a member pivotally connected to said arm and extending upwardly adjacent said jamb, and means for longitudinally adjusting said member.

4. In a vehicle having adjacent window openings and chambers below the openings, windows for the openings movable into the chambers and ja-mbs between adjacent openings and chambers provided with longitudinally extending channels, a window regulator for actuating one of the windows including a lifter arm extending within one of said chambers and operatively connected to the window and also extending within an adjacent chamber and pivotally mounted therewithin, a longitudinally. reciprocable member connected tosaid lifter arm and extending within the channel in said jambbetween said adjacent openings and chambers, and means for actuating saidv reciprocable member.

5. In a vehicle having adjacent window openings and chambers below the openings, windows for the openings movable into the chambers and jambs between adjacent openings and chambers provided with longitudinally extending channels, a windowregulator for actuating one of the windows including a lifter arm extending within one of said chambers and operatively connected to the window and also extending within an adjacent chamber'and pivotally mounted there within, a longitudinally reciprocable member extending within the channel in said j amb between said adjacent openings and chambers, meansupon said amb for reciprocating,

said member and means within said channel and connectedto said member for counterbalancing the weight of the window regulator.

6. In a vehicle having awindow opening, a window for the opening, a j amb at one side of the opening provided with a longitudinally extending channel and a sill at the lower end of the opening, a regulator for actuating said window including a pivotal lifter arm operatively connected at one end to said win dow, amounting for pivotally supporting said arm at one side of said jamb, a rack pivotally connected to said arm and extending within the channel in said jamb and a crank mounted upon said jamb above said BOT and also windows for the openings movable into the chambers, a window regulator for actuating one of the windows including a lifter element having a portion extendlng into a chamber and operatively-connected t0 the window and another portion extending into an adjacent chamber, means within said last mentionedchamber and engageable with the second portion of said lifter element for movably mounting the same, and actuating means for said lifter element.

8. In a vehiclehaving adjacent, window openings and chambers below the openin s, windows for the openings movable into t e chambers and jambs between the openings and chambers, a window regulator for actuating one of the windows having a pivotal lifter arm extending into adjacent chambers and operatively connected at one end to the Window, a mounting plate upon the jamb between said chambers pivotally connected to the other end of said arm, and actuating means engageable with said pivotal lifter arm.

In testimony whereof I aflix my signature.

STANLEY W. NICHOLSON. 

